Breakdown of No creo que el papel tapiz armonice con la alfombra.
no
no, not
la alfombra
the rug
con
with
que
that / than
Questions & Answers about No creo que el papel tapiz armonice con la alfombra.
Why is armonice in the subjunctive here instead of the indicative armoniza?
The phrase no creo que (I don't think that) acts as a negative opinion trigger. When you state what you do believe (creo que), you use the indicative because you are declaring a reality. But when you make it negative (no creo que), you are expressing doubt or denying a reality, which forces the verb into the subjunctive.
The infinitive is armonizar. Why is it spelled armonice with a c instead of a z?
This is a standard spelling rule in Spanish. The letter z changes to c whenever it comes immediately before an e or an i. Because the present subjunctive endings for -ar verbs start with e, all verbs ending in -zar will make this swap (just like empezar becomes empiece).
Is armonizar con the most common way to say two things match?
It works perfectly and sounds nice, but it's a bit formal. In everyday spoken Spanish in Latin America, people more commonly use combinar con (to match/go with), hacer juego con, or even pegar con when talking about clothes or home decor matching.
If I change the sentence to "I do think the wallpaper harmonizes...", what happens to the verb?